{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0x6787ca8ed71e7fb8cb84ed3321ed2467c386e965c8af4ef027641ad227c79ecd",
    "signature": "0x6167b840d3dc4364db0e7b587eb9782c86a28e6c74144f2c7ecdfc9f55d4f0ce4cbf5997063b22f0deebc95f4b6fe3646aa86e04633bf495642136efff2a27a21b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}